> On Mar 17, 2023, at 10:59 AM, Jeff Layton <jlayton@xxxxxxxxxx> wrote: > > On Fri, 2023-03-17 at 14:16 +0000, Chuck Lever III wrote: > >> In the patch description, would you mention that this case >> arises if the READ request is not page-aligned? > > Does it though? I'm not sure that page alignment has that much to do > with it. I imagine you can hit this even with aligned I/Os. Maybe, but no-one has actually seen that. The vast majority of reports of this problem are with unaligned I/O, which POSIX OS NFS clients (like the Linux NFS client) usually avoid. I didn't mean to exclude the possibility of hitting this issue in other ways, but simply observing a common way it is hit. -- Chuck Lever